From fe74290d51bc08e9b90ed7c145d74a22cd50b90e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 2 Oct 2006 02:18:34 -0700 Subject: [PATCH] provide kernel_execve on all architectures This adds the new kernel_execve function on all architectures that were using _syscall3() to implement execve. The implementation uses code from the _syscall3 macros provided in the unistd.h header file. I don't have cross-compilers for any of these architectures, so the patch is untested with the exception of i386. Most architectures can probably implement this in a nicer way in assembly or by combining it with the sys_execve implementation itself, but this should do it for now. [bunk@stusta.de: m68knommu build fix] [markh@osdl.org: build fix] [bero@arklinux.org: build fix] [ralf@linux-mips.org: mips fix] [schwidefsky@de.ibm.com: s390 fix] Signed-off-by: Arnd Bergmann Cc: Andi Kleen Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Russell King Cc: Ian Molton Cc: Mikael Starvik Cc: David Howells Cc: Yoshinori Sato Cc: Hirokazu Takata Cc: Ralf Baechle Cc: Kyle McMartin Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: Paul Mundt Cc: Kazumoto Kojima Cc: Richard Curnow Cc: William Lee Irwin III Cc: "David S. Miller" Cc: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Cc: Miles Bader Cc: Chris Zankel Cc: "Luck, Tony" Cc: Geert Uytterhoeven Cc: Roman Zippel Signed-off-by: Ralf Baechle Signed-off-by: Bernhard Rosenkraenzer Signed-off-by: Mark Haverkamp Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/kernel/misc.S | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'arch/ppc') diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S index 50b4bbd0680..5f6684012de 100644 --- a/arch/ppc/kernel/misc.S +++ b/arch/ppc/kernel/misc.S @@ -942,20 +942,16 @@ _GLOBAL(kernel_thread) addi r1,r1,16 blr +_GLOBAL(kernel_execve) + li r0,__NR_execve + sc + bnslr + neg r3,r3 + blr + /* * This routine is just here to keep GCC happy - sigh... */ _GLOBAL(__main) blr -#define SYSCALL(name) \ -_GLOBAL(name) \ - li r0,__NR_##name; \ - sc; \ - bnslr; \ - lis r4,errno@ha; \ - stw r3,errno@l(r4); \ - li r3,-1; \ - blr - -SYSCALL(execve) -- cgit v1.2.3